Control a Datagrid from another class

Hello Community,

i have a problem with one part of my current project.

I have post it in this category because i Think it´s no problem from the WPF-Side...I have to be a problem with my C#-Code...But I didn´t know where is it...

I have to control a Datagrid from another class

For better overview I have eliminated some of my code, but this is not important for the problem.

Here is my current Code from the Usercontrol. Here is my Datagrid inside:

<UserControl x:Class="Lagerverwaltung_V3_0_Ribbon.MainFrame.TabItemArticle"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:Lagerverwaltung_V3_0_Ribbon.MainFrame"
xmlns:control = "clr-namespace:Lagerverwaltung_V3_0_Ribbon.Article">
<StackPanel>
<Button Height="20" Content="Test" Click="Button_Click"/>
<DataGrid x:Name="dgArticle" AutoGenerateColumns="False" HeadersVisibility="None" IsReadOnly="True">
<DataGrid.Columns>
<DataGridTemplateColumn Width="*">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Label Name="ArticleID" Grid.Column="1" Content="{Binding ArticleID}" Margin="10,0,10,0" VerticalAlignment="Center"/>
DataTemplate>
DataGridTemplateColumn.CellTemplate>
DataGridTemplateColumn>
DataGrid.Columns>
DataGrid>
StackPanel>
UserControl>

and the C# Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace Lagerverwaltung_V3_0_Ribbon.MainFrame
{
public partial class TabItemArticle : UserControl
{
public TabItemArticle()
{
InitializeComponent();
}
private void Button_Click(object sender, RoutedEventArgs e)
{
var data = new Test
{
ArticleID = "#00010000",
};
dgArticle.Items.Add(data);
}
public class Test
{
public string ArticleID { get; set; }
}
}
}

And this is the Form where i want to Control it (my Main Window):

<Window x:Class="Lagerverwaltung_V3_0_Ribbon.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Classic"
xmlns:TabItemGrid="clr-namespace:Lagerverwaltung_V3_0_Ribbon.MainFrame"
xmlns:local="clr-namespace:System.Windows.Controls;assembly=PresentationFramework"
xmlns:system="clr-namespace:System;assembly=mscorlib"
Title="Employee Info" Width="1400" Height="768">
<TabControl TabStripPlacement="Left" VerticalAlignment="Stretch" BorderBrush="#FF6593CF" BorderThickness="1,1,1,0" Style="{DynamicResource OutlookTabControlStyle}" SelectionChanged="TabControl_SelectionChanged">
<TabItem x:Name="MainWindow_SideControl_TabItem_Article" Header="Article">
<ScrollViewer VerticalScrollBarVisibility="Auto">
<TabItemGrid:TabItemArticle x:Name="tabItem_Article"/>
ScrollViewer>
TabItem>
TabControl>
Window>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Controls.Ribbon;
using System.Threading;
namespace Lagerverwaltung_V3_0_Ribbon
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
public class Test
{
public string ArticleID { get; set; }
}
private void RibbonButton_Click(object sender, RoutedEventArgs e)
{
MainFrame.TabItemArticle TabArticle = new MainFrame.TabItemArticle();
var data = new Test
{
ArticleID = "#00010000",
};
TabArticle.dgArticle.Items.Add(data);
}
}
}

My Problem is, that i can´t add a row to the datagrid with the button from the MainWindow.

Add a Row from the 'MainFrame.TabItemArticle' Control is no problem.

I hope you can understand my problem despite my bad english ...

Thank you for tips or other...

Greetings from Germany

Kai Listner

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Nishant Mittal10y ago
Please read my artical Publisher and Subscriber..you will get your answer :)
0
Kai Listner10y ago
I'm absolutly beginner with c#...all of the examples i can find (and yes i have read a lot examples in english and in german), but it will blow up my mind...i don´t understand the function how i create it in my usercontrol that i can use it from outside...
I learn better with an example that i can use directly in practice.
Can you write an example for me that i understand it, please?
I would thank you a lot.
Kai
0
Nishant Mittal10y ago
Why dont u use delegates .......by using delegate u can avoid this issue...
0